The shear deformation increases with the increase of the amount. Ri represents the distance between the axis of the ith bolt and the symmetry center O of the bolt set, while rmax represents the distance between the axis of the maximum stressed bolt and the symmetry center O of the bolt set. Fi represents the working shear force of the ith bolt, and Fmax represents the working shear force of the maximum bolt under stress, then the following formula can be obtained.